Unless I'm playing a Wisdom based spellcaster, Wisdom tends to be my lowest stat. Low will saves suck, but that and skills is all I'm losing by playing a 7 or 8 wisdom character. I tend to have a 13 in Strength and Intelligence, and a 15 in Dex with any character I play... Constitution gets the secondary shaft then, because I refuse to let my charisma be my second lowest stat.